US Patent Issued to Zhongshan Broad-Ocean Motor on May 6 for "Method for pre-positioning rotor of outdoor fan in high-speed counter-rotation state before operation" (Chinese Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,323, issued on May 6, was assigned to Zhongshan Broad-Ocean Motor Co. Ltd. (Zhongshan, China).

"Method for pre-positioning rotor of outdoor fan in high-speed counter-rotation state before operation" was invented by Fei Yang (Zhongshan, China), Min Wang (Zhongshan, China), Song Luo (Zhongshan, China) and Chao Li (Zhongshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for pre-positioning a rotor of an outdoor fan in a counter-rotation state before operation includes: 1) during a counter-operation state, sending, by a microprocessor, a signal to the inverter circuit to turn off all upper electronic switching tubes and turn on all lowe...